Cant understand the Zener diode value code

[amirabbas1234]

hi. im new to electronics and i just bought my first zener diode pack.
i searched on the internet about it and i understood how it works.
but the only problem here is that i cant understand the values written on the diode so i dont know what im dealing with.

i attached images from all sides of one diode in below.
can any one plz tell me what the characters written on the diode mean???

tnx inadvance

 

[kellys_eye]

The number after the 'C' is the voltage..... your example shows C10 - a 10V zener.

If it is followed by a 'V', this represents a decimal point.

So C6V8 would be a 6.8V zener.